2006444 has 24 divisors (see below), whose sum is σ = 3956736. Its totient is φ = 882000.

The previous prime is 2006443. The next prime is 2006447. The reversal of 2006444 is 4446002.

It is not an unprimeable number, because it can be changed into a prime (2006441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (164864).

2^2006444 is an apocalyptic number.

It is an amenable number.

2006444 is a deficient number, since it is larger than the sum of its proper divisors (1950292).

2006444 is a wasteful number, since it uses less digits than its factorization.

2006444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2006444 is about 1416.4900282035. The cubic root of 2006444 is about 126.1272754410.

The spelling of 2006444 in words is "two million, six thousand, four hundred forty-four".